PT84810A - METHOD FOR DETECTING AND / OR IDENTIFYING D: A BIOLOGICAL SUBSTANCE IN A LIQUID MEDIUM USING ELECTRICAL MEASUREMENTS AND DEVICE FOR CARRYING OUT SAID METHOD - Google Patents

METHOD FOR DETECTING AND / OR IDENTIFYING D: A BIOLOGICAL SUBSTANCE IN A LIQUID MEDIUM USING ELECTRICAL MEASUREMENTS AND DEVICE FOR CARRYING OUT SAID METHOD

Info

Publication number
PT84810A
PT84810A PT84810A PT8481087A PT84810A PT 84810 A PT84810 A PT 84810A PT 84810 A PT84810 A PT 84810A PT 8481087 A PT8481087 A PT 8481087A PT 84810 A PT84810 A PT 84810A
Authority
PT
Portugal
Prior art keywords
liquid medium
biological substance
carrying
identifying
detecting
Prior art date
Application number
PT84810A
Other languages
French (fr)
Portuguese (pt)
Other versions
PT84810B (en
Original Assignee
Bio Merieux
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bio Merieux filed Critical Bio Merieux
Publication of PT84810A publication Critical patent/PT84810A/en
Publication of PT84810B publication Critical patent/PT84810B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
    • G01N33/54366—Apparatus specially adapted for solid-phase testing
    • G01N33/54373—Apparatus specially adapted for solid-phase testing involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings
    • G01N33/5438—Electrodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
    • G01N27/3275—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction
    • G01N27/3276—Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction being a hybridisation with immobilised receptors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
    • G01N33/54366—Apparatus specially adapted for solid-phase testing
    • G01N33/54373—Apparatus specially adapted for solid-phase testing involving physiochemical end-point determination, e.g. wave-guides, FETS, gratings

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Urology & Nephrology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Medicinal Chemistry (AREA)
  • Biotechnology (AREA)
  • Cell Biology (AREA)
  • Microbiology (AREA)
  • Food Science & Technology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

The method is for the detection of a biological substance in an electrically conducting liquid medium capable of containing it. In a measurement cell (1), the said liquid medium (5) is put into contact with a reagent-carrying plate (4) incorporating a specific ligand fixed directly onto one face of a thin layer of dielectric material (4a) whose other face is fixed onto an electrically conducting support. The C and/or R components of the electric impedance of the system consisting of the liquid medium, the insulating layer and the support is measured for a given voltage. The said components are compared with those of a reference system similar to the above system but without the specific ligand. Any reduction in the capacitance or variation in the resistance in comparison with those of the reference system indicates the presence of the said biological substance in the liquid medium concerned. The invention also includes the measurement cell for carrying out the method. <IMAGE>
PT84810A 1986-04-30 1987-04-30 PROCESS FOR THE DETECTION AND / OR IDENTIFICATION OF A BIOLOGICAL SUBSTANCE IN A LIQUID WITH THE ASSISTANCE OF ELECTRICAL MEASURES AND A DEVICE INTENDED FOR IN PRACTICE THIS PROCESS PT84810B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8606315A FR2598227B1 (en) 1986-04-30 1986-04-30 METHOD FOR DETECTION AND / OR IDENTIFICATION OF A BIOLOGICAL SUBSTANCE IN A LIQUID MEDIUM USING ELECTRICAL MEASUREMENTS, AND DEVICE FOR CARRYING OUT SAID METHOD

Publications (2)

Publication Number Publication Date
PT84810A true PT84810A (en) 1987-05-01
PT84810B PT84810B (en) 1989-12-29

Family

ID=9334813

Family Applications (1)

Application Number Title Priority Date Filing Date
PT84810A PT84810B (en) 1986-04-30 1987-04-30 PROCESS FOR THE DETECTION AND / OR IDENTIFICATION OF A BIOLOGICAL SUBSTANCE IN A LIQUID WITH THE ASSISTANCE OF ELECTRICAL MEASURES AND A DEVICE INTENDED FOR IN PRACTICE THIS PROCESS

Country Status (7)

Country Link
EP (1) EP0244326B1 (en)
AT (1) ATE93320T1 (en)
DE (2) DE244326T1 (en)
ES (1) ES2002695T3 (en)
FR (1) FR2598227B1 (en)
GR (1) GR880300142T1 (en)
PT (1) PT84810B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920047A (en) * 1988-05-20 1990-04-24 General Electric Company Electrical detection of the immune reaction
DE3916432A1 (en) * 1989-05-20 1990-11-22 Cammann Karl METHOD AND DEVICE FOR DETERMINING THE CONCENTRATION OF AN ANTIBODY-ANTIGUE PAIR
EP0478319B1 (en) * 1990-09-28 1997-04-02 Kabushiki Kaisha Toshiba Gene detection method
US5776672A (en) * 1990-09-28 1998-07-07 Kabushiki Kaisha Toshiba Gene detection method
DE4126177A1 (en) * 1991-08-07 1993-02-11 Biotechnolog Forschung Gmbh FLOW CAPACITOR CELL FOR USE AS A BIOSENSOR FOR CONTINUOUS, QUALITATIVE AND QUANTITATIVE DETERMINATION OF ANALYZES
FR2722294B1 (en) * 1994-07-07 1996-10-04 Lyon Ecole Centrale PROCESS FOR THE QUALITATIVE AND / OR QUANTITATIVE ANALYSIS OF BIOLOGICAL SUBSTANCES PRESENT IN A CONDUCTIVE LIQUID MEDIUM AND BIOCHEMICAL AFFINITY SENSORS USED FOR THE IMPLEMENTATION OF THIS PROCESS
US6440662B1 (en) * 1995-12-01 2002-08-27 Innogenetics N.V. Impedimetric detection system and method of production thereof
GB9604292D0 (en) * 1996-02-29 1996-05-01 Hybaid Ltd Estimation of a nucleic acid
US6355436B1 (en) 1996-05-17 2002-03-12 L'ecole Centrale De Lyon Method for analyzing biological substances in a conductive liquid medium
FR2757948B1 (en) * 1996-12-30 1999-01-22 Commissariat Energie Atomique MICROSYSTEMS FOR BIOLOGICAL ANALYSIS, THEIR USE FOR DETECTION OF ANALYTES AND THEIR PROCESS
FR2757949B1 (en) * 1996-12-30 1999-01-22 Commissariat Energie Atomique MICROSYSTEM FOR BIOLOGICAL ANALYSIS AND ITS MANUFACTURING METHOD
IT1294642B1 (en) * 1997-08-08 1999-04-12 Nika Srl METHOD FOR DETERMINING THE CONCENTRATION OF AN ANALYTE BY USING A BIO-ELEMENT AND OPERATING DEVICE ACCORDING TO
GB9717932D0 (en) * 1997-08-22 1997-10-29 Hybaid Ltd Estimation of nucleic acid
US8071384B2 (en) 1997-12-22 2011-12-06 Roche Diagnostics Operations, Inc. Control and calibration solutions and methods for their use
GB2347746A (en) * 1999-03-05 2000-09-13 Azur Env Ltd Detecting analytes, particularly nucleic acids, in a sample
DE19938138C2 (en) * 1999-08-16 2003-02-13 November Ag Molekulare Medizin Method and device for identifying a biopolymer sequence on solid surfaces
US7163659B2 (en) 2002-12-03 2007-01-16 Hewlett-Packard Development Company, L.P. Free-standing nanowire sensor and method for detecting an analyte in a fluid
US7718439B2 (en) 2003-06-20 2010-05-18 Roche Diagnostics Operations, Inc. System and method for coding information on a biosensor test strip
US8058077B2 (en) 2003-06-20 2011-11-15 Roche Diagnostics Operations, Inc. Method for coding information on a biosensor test strip
US7645421B2 (en) 2003-06-20 2010-01-12 Roche Diagnostics Operations, Inc. System and method for coding information on a biosensor test strip
US7488601B2 (en) 2003-06-20 2009-02-10 Roche Diagnostic Operations, Inc. System and method for determining an abused sensor during analyte measurement
US8148164B2 (en) 2003-06-20 2012-04-03 Roche Diagnostics Operations, Inc. System and method for determining the concentration of an analyte in a sample fluid
US7452457B2 (en) 2003-06-20 2008-11-18 Roche Diagnostics Operations, Inc. System and method for analyte measurement using dose sufficiency electrodes
US7645373B2 (en) 2003-06-20 2010-01-12 Roche Diagnostic Operations, Inc. System and method for coding information on a biosensor test strip
US8206565B2 (en) 2003-06-20 2012-06-26 Roche Diagnostics Operation, Inc. System and method for coding information on a biosensor test strip
US7569126B2 (en) 2004-06-18 2009-08-04 Roche Diagnostics Operations, Inc. System and method for quality assurance of a biosensor test strip
KR101503072B1 (en) 2005-07-20 2015-03-16 바이엘 헬스케어 엘엘씨 Gated amperometry

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490216A (en) * 1983-02-03 1984-12-25 Molecular Devices Corporation Lipid membrane electroanalytical elements and method of analysis therewith
GB2136130B (en) * 1983-02-28 1987-02-11 Theodore Henry Krueger Chemical assay systems and methods
GB8308389D0 (en) * 1983-03-26 1983-05-05 Cambridge Life Sciences Assay technique

Also Published As

Publication number Publication date
EP0244326A2 (en) 1987-11-04
DE3787041D1 (en) 1993-09-23
FR2598227B1 (en) 1989-07-28
EP0244326A3 (en) 1990-02-07
ATE93320T1 (en) 1993-09-15
ES2002695A4 (en) 1988-10-01
DE3787041T2 (en) 1994-03-24
PT84810B (en) 1989-12-29
GR880300142T1 (en) 1988-12-16
DE244326T1 (en) 1988-11-03
EP0244326B1 (en) 1993-08-18
FR2598227A1 (en) 1987-11-06
ES2002695T3 (en) 1994-01-01

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